Sunray, your method will work UNTIL the power levels get somewhat wild. Somewhere around the top end of the 357Mag or beyond, the fact that your upper body is twisted around is going to bite you.
I would also question how stable a platform that sort of hold is.
Tilting your head doesn't hurt your basic body alignment/stability, and if you form a cheekweld with your right bicep it radically boosts upper body stability...although admittedly, an "elbow locked" hold will run into trouble at some upper power limit. For me, it's good at least through very hot 357Mag (Doubletap, 800ft/lbs) in a gun the size of an L-frame, GP100 or Colt SAA. By the time you get past 44Mag horsepower, "elbow locked" is going to be trouble and then some.
OK. All of this is connected to "how much recoil can a given hold cope with?" Because the Isosceles hold is symmetrical, at some point you're going to bury the front sight in your skull. Being asymmetrical, done right the Weaver will take a really big gun PAST your head instead of into it.
A superb demonstration of this is done in a video by John Linebaugh:
http://customsixguns.com/
John ain't a big guy. Here he shoots a 500Linebaugh
one handed, and copes with the recoil (way out past 44Mag territory) by bringing the gun past his body to his "inside" (past his nose!). A Weaver shooter will let the gun yank out of the off-hand and come in past his head to the outside. You can't stop the gun from coming level with your head or beyond, but you CAN shift it sideways as it comes, because either Weaver or one-handed, your strong-side forearm is lined up behind the gun.
(One Weaver method is to bring a handcannon up *above* and past your head with the strong hand that's still on the gun - the off-hand *will* be AWOL by then, no two ways about it...)
These "passing the head" techniques can still be done with big power and a "cross dominant variant" Weaver. It's not as easy and your power handling ability is going to be down by...guesstimating, 10% or so although you may be able to recover that with the "overhead pass".
In isosceles, neither arm has that level of control from behind the gun - both arms come into the gun at an angle and when the off-hand loses gun contact, control goes totally to hell. There are lots of youtube videos of people nailing themselves with handcannons
and isosceles is often involved...the gun is gonna to come straight back into you if the horsepower is high enough. Mind you, at 357-and-below power the isosceles is fine for most people and it has it's advantages. It can be adapted easily to cross-dominant shooting. You won't have that slick "cheek weld effect" for longer-range shooting, but your rapid fire control in defensive-type shooting is better by a bit, hence isosceles is taking over in police training circles.
Hit youtube, search for "jerry mikulek"...world's fastest handgunner, uses isosceles...
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On edit: here's an example of a Weaver hold saving a man's life:
http://www.youtube.com/watch?v=TCLkDpw_ZwI
This nut is shooting some kind of crazy rifle caliber in a single-shot scoped handgun and loses ALL control, gun goes flying. BUT he manages to prove my point, because he put just enough sideways momentum on it that it goes past his head at high speed
. Could have been worse - the back of the scope could have scooped out an eye, or worse yet
.
In this case:
http://www.youtube.com/watch?v=SKO2po9nnVI
...we have a lady shooting big power, allegedly another 500Linebaugh, from a "Weaverish" hold with "isoscelesish elements". I would say she's not quite lining things up right, BUT somehow she's managing to keep both hands on it and hence keeps the hammer from burying itself in her forehead. Cool...but that's not what usually happens...usually the off-hand on the *outside* of the strong-hand fingers parts ways during recoil. I *think* what she's got here is a Bisley grip frame and she's got one of most of each (smallish) hands on different parts of the grip, like some sort of Samurai sword hold
. Hey, whatever works!
, I took his advice and learned to shoot left handed, left eye. It was difficult at first, but after a year or so, it felt completely natural. Now I can shoot wih both hands equally as well, but for any serious target work, it's left handed, left eye.
